Check out the trailer Jackals. the film will be released on September 1 2017 (US).
The films stars Deborah Kara Unger, Stephen Dorff, Johnathon Schaech. Kevin Greutert directs.
Set in the 1980s, an estranged family hires a cult deprogrammer to take back their teenage son from a murderous cult, but find themselves under siege when the cultists surround their cabin, demanding the boy back.